94 5977B Series MSD Troubleshooting and Maintenance Manual
4 General Maintenance
An oil trap is supplied with the standard foreline pump. This trap stops only
pump oil droplets. It does not trap any other chemicals. If you are using toxic
solvents or analyzing toxic chemicals, do not use this oil trap. For all foreline
pumps, install a hose to take the exhaust from the foreline pump outdoors or
into a fume hood vented to the outdoors. For the standard foreline pump, this
requires removing the oil trap. Comply with your local air quality regulations.
The fluids in the DP and standard foreline pump also collect traces of the
samples being analyzed. All used pump fluid should be considered hazardous
and handled accordingly. Dispose of used fluid correctly, as specified by your
local regulations.
Electrostatic discharge
All of the printed circuit boards in the MSD contain components that can be
damaged by electrostatic discharge (ESD). Do not handle or touch these
boards unless absolutely necessary. In addition, wires, contacts, and cables
can conduct ESD to the electronics boards to which they are connected. This is
especially true of the mass filter (quadrupole) contact wires which can carry
ESD to sensitive components on the side board. ESD damage may not cause
immediate failure, but it will gradually degrade the performance and stability
of your MSD.
When you work on or near printed circuit boards, or when you work on
components with wires, contacts, or cables connected to printed circuit
boards, always use a grounded antistatic wrist strap and take other antistatic
precautions. The wrist strap should be connected to a known good earth
The oil trap supplied with the standard foreline pump stops only foreline pump oil. It
does not trap or filter out toxic chemicals. If you are using toxic solvents or
analyzing toxic chemicals, remove the oil trap. Do not use the trap if you have a
CI
MSD. Install a hose to take the foreline pump exhaust outside or to a fume hood.
When replacing pump fluid, use appropriate chemical-resistant gloves and safety
glasses. Avoid all contact with the fluid.
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